Install Instructions
Table Of Contents
- Safety Considerations
- Electrostatic Discharge (ESD) Precautions
- To The Installer
- Product Application
- Location Requirements & Considerations
- Clearances and Accessibility
- Combustion & Ventilation Requirements
- Installation Positions
- Horizontal Applications & Considerations
- Vent Pipe & Combustion Air Pipe
- Materials – Installations In The U.S.A.
- Materials – Installations In Canada
- Pipe Installation
- Combustion Air Pipe Connection
- Vent/Intake Terminations For Installation of Multiple Direct Vent Furnaces
- Condensate Drain Lines & Drain Trap
- General Drain Information
- Field Supplied Drain
- Upflow Model Installed Vertically
- Drain Exiting Right Side
- Drain Exiting Left Side
- Upflow Model Installed Horizontally with Right Side Down
- Upflow Model Installed Horizontally with Left Side Down
- Upflow Model Installed Horizontally With Left Side Down - Alternate
- CounterFlow Model Installed Vertically
- Drain Exiting Left Side (See Figure 28)
- Drain Exiting Right Side (See Figure 29)
- Counterflow Model Installed Horizontally with Right Side Down (See Figure 30)
- Counterflow Model Installed Horizontally with Left Side Down (See Figure 31)
- Electrical Connections
- Gas Supply and Piping
- High Altitude Installation
- Circulating Air & Filters
- Filters - Read This Section Before Installing The Return Air Duct work
- Startup Procedure & Adjustment
- Gas Supply Pressure Measurement
- Operational Checks
- Safety Circuit Description
- Maintenance
- Filters
- Before Leaving an Installation
- Repair and Replacement Parts
- Special Instructions for Products Installed in the State of Massachusetts
18
The vent termination of a direct vent application must
terminate at least 12” from any opening through which
ue gases may enter a building (door, window, or gravity
air inlet).
The vent termination of vent pipe run vertically through
a roof must terminate at least 12” above the roof line (or
the anticipated snow level) and be at least 12” from any
vertical wall (including any anticipated snow build up).
A vent termination shall not terminate over public
walkways or over an area where condensate or vapor
could create a nuisance or hazard or could be detrimental
to the operation of regulators, relief valves, or other
equipment.
The combustion air intake termination of a direct vent
application should not terminate in an area which is
frequently dusty or dirty.
Vent & combustion air pipes may terminate vertically
through a roof, or horizontally through an outside wall.
The combustion air intake and vent pipe terminations
must be in the same atmospheric pressure zone. Vertical
vent pipe terminations should be as shown in gure 14.
The penetration of pipes through the roof must be sealed
water tight with proper ashing such as is used with a
plastic plumbing vent.
Horizontal vent pipe terminations should be as shown in
the following gures. To secure the pipe passing through
the wall and prohibit damage to piping connections, a
coupling should be installed on either side of the wall and
solvent cemented to a length of pipe connecting the two
couplings. The length of pipe should be the wall thickness
plus the depth of the socket ttings to be installed on the
inside and outside of the wall. The wall penetration should
be sealed with silicone caulking material.
Non-Direct Vent
Vent/Flue Termination
No Terminations
Above Walkway
min.
min.
Non-Direct Vent
Vent/Flue Termination
Direct Vent
Vent/Flue Termination
Forced Air
Inlet
Non-Direct Vent
&
Direct Vent
Vent/Flue Terminations
Grade or Highest
Anticipated
Snow Level
*Not required for
9
”
M
A
X
.
3
”
M
N
.
O
O
F
L
N
E
12” MIN
HEIGHT
DIFFERENCE
12” MIN TO ROOF OR
HIGHEST ANTICIPATED
SNOW LEVEL
STRAIGHT
ELBOWS